Spring tire for vehicles



M. SALDlN SPRING TIRE FOR VEHICLES Dec. 12, 1944.

Filed Aug. 26, 1943 IN VEN TOR.

lax Salelz'm Patented Dec. 12, 1944 UNITED STATES PATENT OFFICE A SPRING TIRE FOR VEHICLES.

Max Saldin, Brooklyn, N. Y.

' Application August 26, 1943, Serial No. 500,037

3 Claims. (Cl. 1522.61)

This invention relates to new and useful .improvements in a tire for-vehicle wheels. I

More particularly, the invention proposes a new tire which eliminates the necessity. of a pneumatic inner tube.

Specifically, the new tire is characterized by a closely wound helical spring coiled into annular form and associated with certain holding elements. I

The invention proposes the use of a plurality of rings within said spring and extending around said annular form and secured to the turns of the spring with wire lacing or other similar elements.

Another object of the invention is to provide the helical spring with concave inner and outer strips of stiff flexible material extending around the inner and outer diameters thereof and secured in position with wire lacing along the sides or with other similar elements.

A flexible casing is also contemplated to en gage over the said concave strips and helical spring.

For further comprehension of the invention, and of the objects and. advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a side elevational view of a wheel provided with a tire constructed in accordance with this invention.

Fig. 2 is a, fragmentary enlarged sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a side elevational view of the helical spring and concave strips and associated elements.

Fig. 4 is a fragmentary enlarged detailed view of a portion of Fi 3.

Fig. 5 is a perspective view of the edge p'ortion of one of the concave strips.

Fig. 6 is a side elevational view of the helical spring and the holding rings.

Fig. 7 is a fragmentary enlarged detailed view of a portion of Fig. 6.

Fig, 8 is a fragmentary sectional view taken on the line 88 of Fig. 6.

The tire for wheels, in accordance with this invention, includes a closely wound helical spring H! which is coiled around into annular form. A plurality of rings H are disposed within the spring I 0 and extend around said annular formation. As illustrated on the drawing there are four of these. holding rings. ll equally spaced-from each. other. l2 connects theturns of the spring 10 with the said rings ll.

A concave outer terial, such as sheet metal, extends around the outer diameter of the spring ID. The end portions [3 of said strip l3 overlap. A concave .inner strip M of flexible material, such as sheet metal, extends around the inner diameter of the spring Hi. This strip has end portions Hi which overlap. Wire laces l5 connect adjacent edges and I4 and forms a covering. This flexible cas-' ing is disclosed as constructed of rubber mate-' rial though it may as well be constructed of other flexible soft materials. The casing 2| is illustrated mounted in an annnular'flanged rim 22 which is mounted on a wheel 23. Fastening elements 24 connect the rim of the wheel 23 with the flanged rim 22.

An important feature of this invention resides in the fact that the tire does not require air for inflation. Moreover, the casing 2| need not be of rubber, which is very'scarce at the present time.

7 The outer strip l3 of the tire is preferably made of a wide center portion and two narrower hinged portions so that the tire may be removed from the hub of the wheel by merely collapsing the narrow side portions.

It is to be understood that the closely wound helical spring I0 may be sold in long tubular forms and cut down to the desired length in order to flt the hub or outside diameter of the particular whee1 on which it is to be mounted.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I Wire lacing.

strip' l 3 of stiff flexible maclaim as new, and desire to secure by United States Letters Patent is:

l. A tire for wheels, comprising a closely,

wound helical spring coiled into annular form, a plurality of rings within said spring and extending around said annular form, wire lacing connecting the. turns of said spring and said rings together, a concaved outer strip of stiff flexible material extending around the outer diameter oi said springs, concavedl iimerstrip of stifi flexible material' extending around; the

inner diameter of said spring, wire laces connecting adjacent edges of said concaved strips:

together, and. a flexible casing engagingoizen said,

strips, said strips of flexible materials having'lugs along their edges through which saidi'w1re.;1ae-

ings pass.

2. A tire for wheels, comprisinga closely wound helical spring coiled into annulaniorm; a plurality of rings within said spring and extending around said annularfonn; wirelacing" connecting: the turnsof said? spring and said. ringstogether, a ccncaved outer strip of flexible material extending around the outer' diameter of said spring, a concaved inner strip" '23 connecting the turns of said spring and said mugs together, a concaved outer strip of stiff flexible material extending around the outer diameten'of 'said spring, a concaved inner strip of; 'stifixflexible material extending around the inner diameter of saidspring, wire laces connectinggad'jacentedges of said concaved strips togetlreig, and a flexible casing engaging over said, strips, the ends of said wire lacings being connected; with right; and left hand screws which threadedl'y engagetubular couplings; said ecu"- plings havingopenings for a tool bywhich they may be turned. 

